Recorded Investment in Loans Related to Balance in Allowance for Possible Loan Losses by Portfolio Segment (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for specific impairment	$ 14,855	$ 13,592
Loans collectively evaluated for general impairment	375,540	379,076
Total Gross Loans	390,395	392,668
Real Estate Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for specific impairment	12,644	11,248
Loans collectively evaluated for general impairment	309,152	296,468
Total Gross Loans	321,796	307,716
Business Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for specific impairment	2,131	2,224
Loans collectively evaluated for general impairment	39,980	54,897
Total Gross Loans	42,111	57,121
Consumer Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for specific impairment	80	120
Loans collectively evaluated for general impairment	26,408	27,711
Total Gross Loans	$ 26,488	$ 27,831

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The balance of financing receivables that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524

+ Details

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- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

+ Details

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

+ Details

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